DE3852723D1 - Method for measuring the optical radiation reflected by a reflection point. - Google Patents

Method for measuring the optical radiation reflected by a reflection point.

Info

Publication number
DE3852723D1
DE3852723D1 DE3852723T DE3852723T DE3852723D1 DE 3852723 D1 DE3852723 D1 DE 3852723D1 DE 3852723 T DE3852723 T DE 3852723T DE 3852723 T DE3852723 T DE 3852723T DE 3852723 D1 DE3852723 D1 DE 3852723D1
Authority
DE
Germany
Prior art keywords
measuring
optical radiation
reflection point
radiation reflected
reflected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE3852723T
Other languages
German (de)
Inventor
Hildegard Esser
Ulrich Dr Dipl Phys Grzesik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nexans Deutschland GmbH
Original Assignee
Philips Patentverwaltung GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Priority to DE3852723T priority Critical patent/DE3852723D1/en
Application granted granted Critical
Publication of DE3852723D1 publication Critical patent/DE3852723D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3145—Details of the optoelectronics or data analysis
DE3852723T 1987-07-02 1988-06-27 Method for measuring the optical radiation reflected by a reflection point. Expired - Fee Related DE3852723D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3852723T DE3852723D1 (en) 1987-07-02 1988-06-27 Method for measuring the optical radiation reflected by a reflection point.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873721823 DE3721823A1 (en) 1987-07-02 1987-07-02 METHOD FOR MEASURING THE OPTICAL RADIATION POWER REFLECTED BY A REFLECTION POINT
DE3852723T DE3852723D1 (en) 1987-07-02 1988-06-27 Method for measuring the optical radiation reflected by a reflection point.

Publications (1)

Publication Number Publication Date
DE3852723D1 true DE3852723D1 (en) 1995-02-23

Family

ID=6330728

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873721823 Withdrawn DE3721823A1 (en) 1987-07-02 1987-07-02 METHOD FOR MEASURING THE OPTICAL RADIATION POWER REFLECTED BY A REFLECTION POINT
DE3852723T Expired - Fee Related DE3852723D1 (en) 1987-07-02 1988-06-27 Method for measuring the optical radiation reflected by a reflection point.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19873721823 Withdrawn DE3721823A1 (en) 1987-07-02 1987-07-02 METHOD FOR MEASURING THE OPTICAL RADIATION POWER REFLECTED BY A REFLECTION POINT

Country Status (4)

Country Link
US (1) US4883954A (en)
EP (1) EP0297669B1 (en)
JP (1) JP2666827B2 (en)
DE (2) DE3721823A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380801A3 (en) * 1989-02-01 1991-11-06 Leningradskoe Otdelenie Tsentralnogo Nauchno-Issledo-Vatelskogo Instituta Svyazi (Loniis) Process for determining the optical loss of optical fibres in reflected light
JP2718234B2 (en) * 1990-02-07 1998-02-25 日本電気株式会社 Optical pulse test equipment
US5062704A (en) * 1990-04-25 1991-11-05 Tektronix, Inc. Optical time domain reflectometer having pre and post front panel connector testing capabilities
JPH0823898B2 (en) * 1991-02-28 1996-03-06 株式会社高見沢サイバネティックス Metal body discriminator
US5353906A (en) * 1991-02-28 1994-10-11 Takamisawa Cybernetics Co. Ltd. Metal body discriminating apparatus
DE4133947B4 (en) * 1991-10-14 2004-07-29 Abb Schweiz Ag Sensor for detecting decomposition products of an insulating gas in an encapsulated electrical system
US5251001A (en) * 1991-11-18 1993-10-05 Teradyne, Inc. Reflected optical power fiber test system
JP3206168B2 (en) * 1992-12-29 2001-09-04 安藤電気株式会社 Optical pulse tester
DE19808601A1 (en) * 1998-02-28 1999-09-09 Deutsche Telekom Ag Measuring method for single fibers of cables
US8095002B2 (en) * 2006-04-05 2012-01-10 Tellabs Pataluma, Inc. Method and apparatus for diagnosing problems on a time division multiple network access (TDMA) optical distribution network (ODN)
JP5879546B2 (en) * 2011-01-07 2016-03-08 パナソニックＩｐマネジメント株式会社 Optical transmission system
DE102014103721A1 (en) * 2013-12-20 2015-06-25 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optical sensor, in particular for determining substance concentrations in aqueous solutions by means of a chemiluminescence, absorption or fluorescence measurement
CN109039442B (en) * 2018-08-21 2024-01-30 中国信息通信研究院 Calibrating device and calibrating method for optical return loss

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5461557A (en) * 1977-10-25 1979-05-17 Nippon Telegr & Teleph Corp <Ntt> Measuring device for transmission loss of optical fibers
JPS5510855A (en) * 1978-07-10 1980-01-25 Hitachi Ltd Method of manufacturing composite rotor
JPS5679938A (en) * 1979-12-05 1981-06-30 Fujitsu Ltd Detection system for more than one fault point of optical fiber
JPS5822270B2 (en) * 1980-06-20 1983-05-07 東洋製罐株式会社 Covered welded can and its manufacturing method
US4459477A (en) * 1981-08-27 1984-07-10 Trw Inc. Microbending of optical fibers for remote force measurement
US4421979A (en) * 1981-08-27 1983-12-20 Trw Inc. Microbending of optical fibers for remote force measurement
US4497575A (en) * 1982-11-01 1985-02-05 Tektronix, Inc. Optical fiber test instrument calibrator
IT1199897B (en) * 1985-07-22 1989-01-05 Cselt Centro Studi Lab Telecom METHOD AND DEVICE FOR THE MEASUREMENT OF COUPLING LOSSES BETWEEN SINGLE-MODE OPTICAL FIBERS
US4692610A (en) * 1986-01-30 1987-09-08 Grumman Aerospace Corporation Fiber optic aircraft load relief control system

Also Published As

Publication number Publication date
EP0297669A2 (en) 1989-01-04
JPS6425030A (en) 1989-01-27
EP0297669A3 (en) 1991-02-06
EP0297669B1 (en) 1995-01-11
JP2666827B2 (en) 1997-10-22
US4883954A (en) 1989-11-28
DE3721823A1 (en) 1989-01-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ALCATEL KABEL AG & CO., 30179 HANNOVER, DE

8339 Ceased/non-payment of the annual fee